Modeling of Dynamic Contact Angle of Droplet on a Solid Surface in a Shear Flow

Abstract

The dynamic contact angle is important for predicting the motion of droplets by mean of numerical simulation. However, a well-known dynamic contact angle model , such as Hoffman et al. ⁽³⁾, can not predict the behavior of droplets accurately. In this study, we experimentally visualize the dynamic contact angle of droplets and calculate the flow field by numerical simulation. Then we propose the dynamic contact angle model for the low capillary number.